Campbell Scientific 255-100 Novalynx Analog Output Evaporation Gauge - Manual (Page 9)

255-100 Novalynx Analog Output Evaporation Gauge
5. Programming
Depending on the model of datalogger, make the measurement using the
Excite-Delay SE (P4) Edlog instruction, ExDelSE CR200 Series instruction, or
the BrHalf CRBasic instruction. An example from each language follows.
Multiplier and offset will depend on the calibration of the gauge. These
examples are for those who wish write their own program. The Short Cut
program generator can be used to create a program by choosing a Generic
Measurements>Half Bridge as the sensor.
Wiring Used in Examples
CR10X CR200 CR1000
Red E1 Vx1 Vx1
White SE1 SE1 SE1
Black AG
Shield AG
CR1000 Measurement Instruction
BrHalf (PanLevel,1,mV2500,1,Vx1,1,2500,True,0,_60Hz,1.0,0)
CR200-series Measurement Instruction
ExDelSE (PanLevel,1,1,Ex1,mV2500,500,1.0,0)
CR10X Measurement Instruction
01: Excite-Delay, SE (P4)
1: 1
Reps
2: 5 ±2500 mV Slow Range
3: 1 SE Channel
4: 1 Excite all reps w/Exchan 1
5: 1 Delay (units 0.01 sec)
6: 2500 mV Excitation
7: 1 Loc [ Level_1 ]
8: 1.0 Mult
9: 0.0 Offset
CR1000 Example Program
'CR1000 Series Datalogger
'Example program for 255-100 Novalynx evaporation gauge
Public PTemp, batt_volt
Public PanLevel
Dim Leveltemp(5)
Const PanMultiplier = 1
'Adjust Pan Multiplier and PanOffset
Const PanOffset = 0 'according to sensor calibration
Units PanLevel = Inches
5